import java.util.Scanner;

/**
 * Created by dllo on 18/3/29.
 */
public class Question01 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("输入年份:");
        int year = scanner.nextInt();
        if ((year % 100 != 0 && year % 4 == 0 )|| year % 400 == 0) {
            System.out.println("是闰年");
        } else {
            System.out.println("不是闰年");
        }
    }
}
